Pelican Nebula Mosaic

Posted by on Aug 5, 2019

Pelican Nebula Mosaic

This is a portion of the Pelican and North America Nebula, in the constellation of Cygnus, the Swan. The "mountains" in this image are formed by an area of denser gas and dust that is slowly being eroded away by the ultraviolet radiation from nearby young, hot stars, forming what is known as an ionization front. By using special filters to isolate the light from individual chemical elements, and assigning these elements to different colors, subtle variations in the energy levels within the cloud can be brought into stark detail. Light from oxygen atoms is shown as orange, and represents the highest energy. Green represents sulphur.

Raw images:
Ha: 90 x 10min for the 3x3 mosaic Bin:1x1
Seeing: 2.7"

Equipment used:
ASA N12 Astrograph F/3.6
3" Wynne Corrector 0.95x
Moravian G3 16200
No guiding

Astrodon Ha 5nm

Valla Observatory (FROSON, Sweden)
November 20, 2018

Image processing:
Images calibrated and processed in Pixinsight and AstroPix 

Image palette:
RGB palette. Ha - Red, SII - Green, OIII - Blue

 Image information:
Scale: 0.92 arcsec/pix
FOW: 52x42 arcmin

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